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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $716,425,998 | 20,989,634 | 20,989,634 |
| 2006 | $548,855,865 | 21,454,370 | 21,454,370 |
| 2007 | $858,915,056 | 27,015,060 | 27,015,060 |
| 2008 | $845,157,363 | 26,601,250 | 26,601,250 |
| 2009 | $375,821,966 | 31,335,189 | 31,335,189 |
| 2010 | $400,326,946 | 26,128,223 | 26,128,223 |
| 2011 | $681,686,823 | 42,214,901 | 42,214,901 |
Note: Quantity represents Weight in kilograms
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